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Enthonyli

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Transcript

  • 1. FloodingBy: Enthony LI Class K
  • 2. What is Flood• Flood is the water come from rain, river, ocean, then can’t not go out.• Discharge- Release or allow to go• Flash Flood- Audden short lived torrent• Inundnt- cover or over spead with water• Overflow- to flow or run out• Absorb- get in• River band- two side of river• Saturate- full• Capacity- how many thing can hold in• Water full- steep tall of water, as of a steam, from a height• Aquifer- undergroud layer of water
  • 3. Causes• Heavy rain falls for days, building up too much water for groundwater system to handle, slowly, the water level begin to rise and the flood come.
  • 4. Effect• House distory Tree fall down
  • 5. Map
  • 6. Graph: flood reported in China affected #of people201020031998 affected #of people19961991 0 100,000,000 200,000,000 300,000,000
  • 7. supporting evidence• China is near ocean, and there is river in China. sometimes flooding can come from ocean and river.• South china is close to the equator. Lot of hurricanes happen near the equator and this can cause flooding happen.1/16/2013
  • 8. Prevention• Bunds- large hole on the ground for stop water• Reservoirs-storage pond• Weirs-Separated by a river designed to change the flooding flow
  • 9. Conclusion• Flooding is too much water from the river, ocean, and rain. At south China have many Flood happening every year, the evident for too many flood, is the weather is warm, and at my graph China 1991-2010 the flood is change too much. It is easy to have hurricane, and I see the people throw many garbage at the drainage channel At China. This make the drainage channel broken, this make the water can’t go to ocean and river. This cause the flood happen. If this pattern continues for the next 100 years, it would make the environment became very bad. The water is not clean because the garbage is everywhere, and everytime precipitation happen will cause flood.